<template>
  <div class="header">
    <van-icon name="arrow-left" class="icon" @click="toBack" />
    <div>{{ title }}</div>
    <div class="edit" v-if="edit" @click="handleEdit">
      {{ store.state.edit ? "编辑" : "完成" }}
    </div>
  </div>
</template>
<script>
import { useRouter } from "vue-router";
import { Toast } from "vant";
import { useStore } from "vuex";
export default {
  props: ["title", "edit"],
  setup() {
    const router = useRouter();
    const store = useStore();
    const toBack = () => {
      router.back();
    };
    const handleEdit = () => {
      if (store.state.cartList.length) {
        store.commit("edit");
        store.commit("changeDelete");
      } else {
        Toast.fail("请添加商品到购物车!");
      }
    };
    return {
      toBack,
      handleEdit,
      store,
    };
  },
};
</script>
<style lang="less" scoped>
.header {
  background-color: #fff;
  height: 40px;
  font-size: 20px;
  display: flex;
  justify-content: center;
  align-items: center;
  border-bottom: 1px solid #d7d7d7;
  .edit {
    font-size: 16px;
    position: absolute;
    right: 15px;
    font-weight: normal;
  }
  .icon {
    position: absolute;
    left: 10px;
  }
}
</style>